BRAIN TEASERS
The Most Difficult Tasks (page 277)

The Most Difficult Tasks (page 277)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 2761 to 2770.
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Find number abc

If ccc99 + a120c = 1b6a04 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is NĂ­lton CorrĂȘa de Sousa.
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#brainteasers #math
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Find number abc

If c71bc + 2b844 = b4aa7 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind

Aaron Karo: New Diet

I was reading about this new diet where youre not allowed to drink alcohol. Well, I read the first sentence at least.
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What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[link]

What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[link]

Find number abc

If 9a022 + b3975 = a5c997 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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Find number abc

If a274c - 79bc3 = 31a3 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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Find number abc

If aaa6b + cb92b = 164c90 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
[link]

What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Find the right combination

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
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Telephone fax

In 1922, city telephone lines were used for the first time in the U.S. for the transmission of a facsimile photo in Washington, DC. Charles F. Jenkins sent an image from 1519 Connecticut Ave to the U.S. Navy Radio Staion NOF at Anacostia, D.C. Witnesses from the U.S.Navy and the Post Office Dept. attended the transmission. A photographic plate was used to record the signals at 5502 16th St, N.W. Washington, D.C. Earlier in the year, on 11 Jun 1922, a photograph had been sent by radio across the Atlantic from Rome to Bar Harbor, Maine. That transmission reproduced a 7 x 9.5 in. halftone picture, using light falling on a selenium cell to form the dots.
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